* [PATCH] drm/bridge: parade-ps8622: Use backlight helper
@ 2022-06-07 18:10 Stephen Kitt
2022-06-07 21:04 ` Stephen Kitt
2022-06-24 20:00 ` Sam Ravnborg
0 siblings, 2 replies; 3+ messages in thread
From: Stephen Kitt @ 2022-06-07 18:10 UTC (permalink / raw)
To: Andrzej Hajda, Neil Armstrong, Robert Foss, Laurent Pinchart,
Jonas Karlman, Jernej Skrabec, David Airlie, Daniel Vetter
Cc: dri-devel, linux-kernel, Stephen Kitt
backlight_properties.fb_blank is deprecated. The states it represents
are handled by other properties; but instead of accessing those
properties directly, drivers should use the helpers provided by
backlight.h.
Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
---
drivers/gpu/drm/bridge/parade-ps8622.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/bridge/parade-ps8622.c b/drivers/gpu/drm/bridge/parade-ps8622.c
index 37b308850b4e..b5750e5f71d7 100644
--- a/drivers/gpu/drm/bridge/parade-ps8622.c
+++ b/drivers/gpu/drm/bridge/parade-ps8622.c
@@ -324,11 +324,7 @@ static int ps8622_send_config(struct ps8622_bridge *ps8622)
static int ps8622_backlight_update(struct backlight_device *bl)
{
struct ps8622_bridge *ps8622 = dev_get_drvdata(&bl->dev);
- int ret, brightness = bl->props.brightness;
-
- if (bl->props.power != FB_BLANK_UNBLANK ||
- bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
- brightness = 0;
+ int ret, brightness = backlight_get_brightness(bl);
if (!ps8622->enabled)
return -EINVAL;
base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
--
2.30.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/bridge: parade-ps8622: Use backlight helper
2022-06-07 18:10 [PATCH] drm/bridge: parade-ps8622: Use backlight helper Stephen Kitt
@ 2022-06-07 21:04 ` Stephen Kitt
2022-06-24 20:00 ` Sam Ravnborg
1 sibling, 0 replies; 3+ messages in thread
From: Stephen Kitt @ 2022-06-07 21:04 UTC (permalink / raw)
To: Andrzej Hajda, Neil Armstrong, Robert Foss, Laurent Pinchart,
Jonas Karlman, Jernej Skrabec, David Airlie, Daniel Vetter
Cc: dri-devel, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 2106 bytes --]
On Tue, 7 Jun 2022 20:10:22 +0200, Stephen Kitt <steve@sk2.org> wrote:
> backlight_properties.fb_blank is deprecated. The states it represents
> are handled by other properties; but instead of accessing those
> properties directly, drivers should use the helpers provided by
> backlight.h.
Apologies for the misleading boilerplate, this patch came about as a result
of cleaning up fb_blank usage but doesn't involve fb_blank itself.
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
>
> Signed-off-by: Stephen Kitt <steve@sk2.org>
> Cc: Andrzej Hajda <andrzej.hajda@intel.com>
> Cc: Neil Armstrong <narmstrong@baylibre.com>
> Cc: Robert Foss <robert.foss@linaro.org>
> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
> Cc: Jonas Karlman <jonas@kwiboo.se>
> Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
> ---
> drivers/gpu/drm/bridge/parade-ps8622.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/parade-ps8622.c
> b/drivers/gpu/drm/bridge/parade-ps8622.c index 37b308850b4e..b5750e5f71d7
> 100644 --- a/drivers/gpu/drm/bridge/parade-ps8622.c
> +++ b/drivers/gpu/drm/bridge/parade-ps8622.c
> @@ -324,11 +324,7 @@ static int ps8622_send_config(struct ps8622_bridge
> *ps8622) static int ps8622_backlight_update(struct backlight_device *bl)
> {
> struct ps8622_bridge *ps8622 = dev_get_drvdata(&bl->dev);
> - int ret, brightness = bl->props.brightness;
> -
> - if (bl->props.power != FB_BLANK_UNBLANK ||
> - bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
> - brightness = 0;
> + int ret, brightness = backlight_get_brightness(bl);
>
> if (!ps8622->enabled)
> return -EINVAL;
>
> base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56
> --
> 2.30.2
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/bridge: parade-ps8622: Use backlight helper
2022-06-07 18:10 [PATCH] drm/bridge: parade-ps8622: Use backlight helper Stephen Kitt
2022-06-07 21:04 ` Stephen Kitt
@ 2022-06-24 20:00 ` Sam Ravnborg
1 sibling, 0 replies; 3+ messages in thread
From: Sam Ravnborg @ 2022-06-24 20:00 UTC (permalink / raw)
To: Stephen Kitt
Cc: Andrzej Hajda, Neil Armstrong, Robert Foss, Laurent Pinchart,
Jonas Karlman, Jernej Skrabec, David Airlie, Daniel Vetter,
linux-kernel, dri-devel
On Tue, Jun 07, 2022 at 08:10:22PM +0200, Stephen Kitt wrote:
> backlight_properties.fb_blank is deprecated. The states it represents
> are handled by other properties; but instead of accessing those
> properties directly, drivers should use the helpers provided by
> backlight.h.
>
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.
>
> Signed-off-by: Stephen Kitt <steve@sk2.org>
> Cc: Andrzej Hajda <andrzej.hajda@intel.com>
> Cc: Neil Armstrong <narmstrong@baylibre.com>
> Cc: Robert Foss <robert.foss@linaro.org>
> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
> Cc: Jonas Karlman <jonas@kwiboo.se>
> Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: dri-devel@lists.freedesktop.org
Thanks, applied to drm-misc (drm-misc-next).
I kept the full changelog.
Sam
^ permalink raw reply [flat|nested] 3+ messages in thread
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2022-06-07 21:04 ` Stephen Kitt
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